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Dow Corning Dowsil 784 Weather Sealant 310ml

Total Price (ex VAT): £ 5.67

Sold only in Full Box Quantities.
Fungus and mildew resistant
Good Elasticity
100% Silicone
Conforms to ISO 11600-G-20LM
Solvent free

Dowsil 784 is a single-part silicone sealant with built in ffingicide that resists mould and mildew. It provides a good degree of elasticity and a high gloss appearance. Moreover, it’s compliant with ISO 11600-G-20LM and can withstand extreme temperatures, UV radiation and ozone.

Dowsil 784 cures quickly (tack free in one hour) and can allow + or -25% joint movement. Note that it’s incompatible with porous materials on external frames.

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Description

Dowsil 784 is suitable for sealing around windows and doors in bathrooms or where high humidity and moisture are present. It is also well suited for sealing surfaces in industrial kitchens due to its abrasion resistance, sanitary sealing in modular buildings and general construction due to its high gloss finish and resistance to mould and fungal growth. Moreover, it’s compliant with ISO 11600-G-20LM and can withstand extreme temperatures, UV radiation and ozone.

Dowsil 784 cures quickly (tack free in one hour) and can allow + or -25% joint movement. Note that it’s incompatible with porous materials on external frames.

Good elasticity

Dowsil 784 is known for its exceptional elasticity. This means that the sealant can stretch and flex without compromising its integrity, making it perfect for use in areas that experience frequent movement or vibrations. Whether it’s installed in a bathroom, kitchen, or any other area prone to shifting surfaces, Dowsil 784 ensures a reliable and long-lasting seal.

Fungus and mildew-resistant

Fungus and mildew are common problems in the bathroom, where moisture and condensation create the perfect environment for their growth. That’s why it’s essential to choose a silicone sealant that is fungus and mildew-resistant, like Dowsil 784. Specially designed for bathrooms, kitchens, and other humid areas, this product prevents the growth of these unsightly and potentially harmful organisms.

Resistant to ozone, UV rays, and extreme temperatures

The Dowsil 784 stands out for its exceptional resistance to ozone, ultraviolet radiation, and extreme temperatures. It’s a great choice for environments that need durability.

Ozone is notorious for causing deterioration in many materials over time. Even in ozonated water conditions, Dowsil 784 sealant stays intact.

Dowsil 784 is also highly UV-resistant. It won’t deteriorate or discolour when exposed to sunlight or UV rays. Additionally, Dowsil 784 can withstand extreme temperatures without losing its integrity or bonding capacity.

What are the uses of Dowsil 784?

Dowsil 784, a weather sealant, is specifically designed to withstand high-humidity environments. One of its primary uses is in sealing windows located in bathrooms, where moisture levels can be particularly challenging.

How long does Dowsil 784 take to cure?

It’s frustrating to wait for a sealant to cure, especially if you’re short on time. The Dowsil 784 sealant cures in just 24 hours, which is great if you’re on a tight schedule.

After you apply the sealant, you won’t have to wait days for it to dry and set. Being able to resume normal use after sealing a bathroom fixture or repairing joints in your kitchen is definitely a plus.

What is the shelf life of Dowsil 784?

The shelf life of Dowsil 784 is an impressive 810 days from the date of manufacture.

Dowsil 784 application

Preparation of surfaces

Surfaces to be sealed should be free from dust, moisture, frost, releasing agents, previous sealants and anything else that might hinder adhesion. Clean and degrease all surfaces with an appropriate solvent using an oil and lint-free cloth before sealing.

Instructions for applying

It is recommended to apply the sealant with a sealant gun. Upon completion, the tooling should take place within five minutes to achieve good adhesion.

Getting things cleaned up

Before curing, non-porous surfaces and tools should be cleaned of excess sealant.

How long does Dowsil 784 take to dry?

The curing time for Dowsil 784 is one day. This sealant cures at a rate of 2mm per day.

Is Dowsil 784 paintable?

No, this silicone sealant is not paintable.

What is Dowsil?

Dowsil is a brand by Dow Chemicals, a global provider of sealing products, protective coatings and other construction solutions. Dowsil leads the world in the electronics industry’s hardware lubricants, sealants and adhesives. Globally, it offers solutions that enhance industrial efficiency and satisfy many customer needs. It provides over 7,000 products and services.

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